Im 6'4" and 200lbs. What bow is best for me might not be the best bow for him. The best thing to do is to go to a shop and shoot a few with someone who knows about bows. Most shops will be able to fit him, then its up to what he likes the best. Just be careful, some shops will try to sell you everything they have got, which you won't really need. But they will try to make you think you need it all. That is why its best if you got someone along that knows a little about them.